There are more things to consider. If a disc is to moist or cold, like if you are in a room with neither air conditioning or furnace heating (like if you rent out someone's furnaced garage), or if your player doesn't have the space to properly ventilate (which a massive pet peeve of mine, and a reason why many people seem to go through gaming systems and dvd players so quickly), if you like to leave your discs sitting around like drink coasters, if you have a really old/cheap player (one player I had had issues with dual layer DVDs and would pause permanently when the layers changed), but the likeliest of scenarios is that you just got a faulty disc.
However, if your player is old, I would look into buying a new one. They are relatively affordable these days.



